A 60-kg bungee jumper stands at the top of a 50-m tall bridge. The jumper has a bungee secured to his ankles. The original length of the bungee is 25 meters. After falling 25 meters, the jumper reaches a maximum speed of 22m/s. He continues to fall until he comes to rest instantaneously and then is pulled back up by the bungee. Describe the energy transformations during the fall and return trip upward.